Finding the Fourth Proportional to 192,385.15, 265,486.07 and 107,502.21
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Solution
The fourth proportional to 192,385.15, 265,486.07 and 107,502.21 is: 148,350.02
Step by Step Solution
- Step 1: Write the proportion equation
192,385.15 : 265,486.07 = 107,502.21 : x - Step 2: Convert to fraction form
192,385.15/265,486.07 = 107,502.21/x - Step 3: Cross multiply
192,385.15x = 265,486.07 × 107,502.21 - Step 4: Simplify right side
192,385.15x = 28,540,339,517.97 - Step 5: Solve for x
x = 28,540,339,517.97/192,385.15 - Step 6: Final answer
x = 148,350.02
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.